Читать книгу Physics I For Dummies - Steven Holzner - Страница 74

Now say that you’re at the end of the first mile and want to see how far you’d have to go — at the same acceleration — to get to 200 miles per hour. Once again, you need to relate velocity, acceleration, and displacement, so this equation is your baby:

Here, you want to solve for s, the displacement, and you get this:

Great. Now for some numbers. In this case, , , and , and you don’t know s at this point. To find s, plug your numbers into the equation you found for s to get

So it would take 3.0 additional miles to get you up to 200 mph.